Volti is a lightweight GTK+ application for controlling audio volume from system tray/notification area.

Features:
* no PulseAudio, GStreamer, Phonon etc. only ALSA is needed
* internal mixer application, either choosing any mixer app
is possible
* left click opens volume scale (slider)
* scroll wheel on tray icon changes volume, increment in
percents is configurable
* configurable middle click to toggle 'mute' or 'show mixer'
* nice tooltip with card and volume info
* support for multimedia keys
* support desktop notifications on keys events